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NEET Practice Questions (MCQs) with Answers & Solutions

Practice free NEET NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

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In an Electrostatic precipitators the velocity of air blown between the plates must be.

A. Low B. High C. moderate D. very high

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The Scrubber is used to remove gases likeâ€¦

A. SOd₂d B. NOd₂d C. COd₂d D. SOd₃d

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Particulate matter of which size causes greatest harmto human health?

A. 2.5 micrometer or less in diameter B. More than 2.5 micrometer C. More than 3.5 micrometer D. Less than 3.5 micrometer

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Which catalyst should be fitted into filters in order to reduce emission of poisonous Gases?

A. Selenium B. Rhodium C. Magnesium D. Manganese

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Which metal is the main air pollutant in metro cities?

A. Lead B. Coppper C. Magnesium D. Iron

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Which catalyst converts unburnt hydrocarbons into CO₂ and H₂O?

Platinum-Palladium

Platinum-Chloride

Palladium- Chloride

Lead

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What is the effect of catalytic converter on carbon monoxide and nitrogen oxide of exhaust?

Converts them into CO₂ and H₂ O

Converts them into CO₂ andNitrogen gas

Converts theminto CO₂ and NH₄

It converts them into CO₂ and NO₂

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In which year noise was also included as an air pollutant?

A. 1981 B. 1987 C. 1986 D. 1984

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Sound waves of decibels causes damage to eardrum or permanentlyimpair hearing?

A. 150db or more B. 120db or more C. More than 80db D. 110db

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Which type of pollution causes altered breathing pattern, increased heartbeats and sleeplessness

A. Noise pollution B. soil pollution C. Radioactive pollution D. Thermal pollution

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